Carbureting apparatus.



N. W. PILL.

GARBURETING APPARATUS.

APPLICATION FILED AUG.10,1909.

Patented Mar l, 1910.

2 anus-4min 1.

llltilllllllll I NORMAN WILLIAM PILL, OF NEWPORT, ENGLAND.

CARBURETING APPARATUS.

To all whom it may concern."

Be it known that I, NORMAN WILLIAM PILL, subject of His Majesty the Kingof Great Britain, residing at Newport, in the county of Monmouth, Wales,Great Britain, have invented a new and useful. Improvement inCarbureting Apparatus, of which the following is a specification.

This invention relates to improvements in and relating to apparatus forproducing inflammable gas by carbureting air and has reference to thattype of apparatus wherein inflammable gas is produced by passing air ata suitable pressure through light liquid hydrocarbons such for instanceas spirit of petroleum. A. diliiculty which is invariably experienced incarbureting apparatus of this type is the obtaining of a gas containingthe proper proportions of air and gaseous vapor.

In order to provide a means of regulating the proportions of air andvapor two primary methods have been adopted. In the one case anadditional supply of air is provided and added to the gaseous mixture,usually after such mixture has passed out of the carbureting tank orchamber. In the other case the regulation of the mixture takes place inthe carbureting tank or chamber itself and is in some cases efi'ected byregulating the distance through the liquid which the air traverses. Inmy apparatus I propose to make use of the latter of these broadprinciples and an important feature of my invention consists in theprovision of a series of perforated separately or collectivelyinclinable carbureter tubes by means of which I am enabled to obtain amore effective and finite regulation than has hitherto been possible.Moreover my invention comprises a particular construction, combinationand arrangement of parts calculated to give a complete working plantwhich shall be simple and inexpensive of construction and etficient inuse, and wherein the air and vapor of which the inflammable gasconsists, are more intimately mixed than hitherto. And in order that myinvention may be more readily understood and carried into practice,reference is hereby made to the accompanying sheets of illustrativedrawings wherein:

Figure I represents a plan view of an apparatus constructed inaccordance with my invention with the cover of the trough removed, partsbeing cut away to more Specification of Letters Patent.

Application filed August 10, 1909.

Patented Mar. TIL, 191W.

Serial No. 5512,5320.

clearly show the carbureter tubes within. Fig. II is a sectionalelevation through line X, Y, Fig. I. Fig. III is a sectional endelevation, on line A, B, Fig. I.

Referring to these drawings wherein like numerals of reference indicatecorrespond ing parts wherever occurring throughout all the figures, thenumeral 1 designates a deep trough elevated on suitable feet, 2, andrendered airtight by means of its cover, 3, which is coupled thereto bythe engaging flanges l, 5, furnished witlnholes, 6, to re ceive bolts,1', traversing both flanges which bolts are tightened together by nuts,8, suitable packing being interposed between the flanges.

A. common distribution chamber 9, is formed at one end of the trough bythe diaphragm, 10, the only communications with which chamber are, onthe one side, the inlet port for air from the compressor or blowerthrough the junction, 11, and the near apertures, 17, of the carburetertubes, 19. An outlet, fitted with a junction, 12, is made at the otherend of the trough, preferably diagonally opposite to the inlet port.

Liquid hydrocarbon is admitted into the trough through the tube, 13,gravitating thereto from a storage tank, the requisite level of the saidliquid being maintained by a float-feed regulator, 14., or theequivalent therefor. The level of the liquid hydrocarbon in the tank canbe read off on a vertical glass gage, 16, fitted outside the trough, aconvenient level being such that the liquid, 15, rises substantially tothe centers of the apertures, 17, of the carbureter tubes.

I prefer to make the carbureter tubes, 19, of substantially pear-shapedsection, Fig. III, and, if their near ends are fixed directly to thefront portion, 18, of the diaphragm, 10, the material of which thelatter is constructed is sufficiently flexible to admit of theinclination of the carburetor tubes being varied within limits. Largerapertnres might however be made in the diaphragm, 10, corresponding tothe sections of the conduits, 22, and these apertures covered by moreflexible material to which the near ends of the carbureter tubes wouldbe fixed. The said carbureter tubes, 19, are furnished with longitudinalseries of small holes, 20, through which the pressure forces the airinto the liquid, 15. \Vhile one line only of these orifices isrepresented at the bottom of each tube, and this a straight series, a

series or line of orifices might be provided ascending spirally in thewall of the tube, 19, as shown in Fig. II. Moreover lines ofperforations on both sides of the tube might be furnished instead of asingle line. The remote ends of the tubes, 19, are closed by caps, 21,the upper parts, 2st, of which may be turned over or deflected to thehorizontal, and provided with holes or slots,'vertical rods, 26, beingswiveled to the parts 24.

The saturated or carbureted air, escaping from the surface of theliquid, does not rise directly into the trough, but is directed to theremote end thereof by means of hoods or conduits, 22, which hoods orconduits are of inverted U shape and rise from the bottom, 23, of thetrough and are open only at the remote ends. By this arrangement, thetotal travel of the air, from the inlet port to the outlet port, througheither carbureter tube, is constant and the carbureted air from each'ofthe tubes 19, meets and mixes before passing out of the junction 12.

The inclination of the carbureter tubes, and, therefore the depths ofthe orifices therein, and the resistance offered by the liquid to theescape of air through them, may be regulated by various forms ofmechanism. One method is represented in the accompanying drawings:Vertical rods, 26, are swiveled as aforesaid at 25, to the horizontalparts 24, of the caps 21. These rods are screw-threaded at their upperends 28 and engage in tapped holes in the cover 8. The upper extremities27, of the rods 26, may be squared to take keys or alternatively may beprovided with terminals convenient for turning the rods. To make thebore gas-tight, nuts 30, may be employed to compress soft washers, 29.The lower ends of the rods 26 might however be hinged to the caps 21 andpass through smooth bores in the cover. In this case the rods would beraised and lowered by turning nuts, engaging with the screw threads 28on the upper ends of such rods, which nuts would bear against the cover3 externally. Cylindrical caps are in this case used 011 the extremeends of the rods to screw down firmly on soft washers resting on theupper faces of said nuts.

While I prefer to regulate each tube independently, it will be readilyunderstood that the tubes might be connected by a trans verse rod andregulated by a single vertif combination of a liquid containing tankprovided with a gage, a float feed and inlet and cal rod.

According to my invention, and, by such apparatus as is hereindescribed, the constituents of the gaseous product of the carbureterwhich is drawn off through the outlet port may be varied to anyproportions and accurately regulated with relation to any requiredconsumption within the limits of the minimum and maximum workingcapacity of the carbureter while a series of such carbureters may beconnected up together to increase the total capacity. The air forcedinto the carbureter tubes tends to escape through the orifices whichoffer the least resistance to its passage, and these orifices may besubmerged, by the regulating apparatus, to any required depth, withinlimits, or the end orifices may be raised free from the liquid toincrease the proportion of air in the product.

It will be understood from the foregoing that by reason of the fact thateach of the carbureter tubes is independently capable of being raised orlowered the apparatus provides for a very finite regulation. Aditlerence in the richness of the mixture is effected even if theinclination of only one of the tubes 19 is altered assuming the airsupply to be constant. More pronounced dill'erence will result as eachof the other tubes is altered so that by careful adjustment any dcsiredmixture can be readily obtained. The provision of the hoods or conduits22 also gives great practical advantages because by this means a bettermixing of the gaseous apor is effected. The air carburetcd by itspassage through each of the tubes 19 may vary as aforesaid in respect ofeach tube a. each tube may produce a gaseous vapor of differentconstitution but as the streams of gas all meet at the open ends of theconduits a satisfactory mixing takes place with the result that a propermixture passes out of the junction pipe 12.

hat I claim and desire to secure by Letters Patent is:

1. In apparatus for carbureting air the combination of a liquidcontaining tank pro vided with a gage, a float feed and inlet and outletorifices, a common air chamber within the tank, a plurality of partiallyimmersed carbureting tubes, perforated at regular intervals on theirunder or immersed parts, said carbureting tubes being closed at one oftheir ends and flexibly connected to the wall of the air chamber attheir other ends, means for varying the inclinations of the carburetingtubes within the limits of their flexible connections, and hoods orconduits containing the carbureting tubes, said hoods or conduits beingopen at their free ends, all arranged and operating substantially asspecified.

2. In appaatus for carbureting air the outlet orifices, a common airchamber within the tank, a plurality of partially immersed carburetingtubes, connnunicating with a common air chamber, perforated at regularintervals on their under or immersed parts, said carbureting tubes beingclosed at one of their ends and flexibly connected to the wall of theair chamber at their other ends, means for varying the inclinations ofthe carbureting tubes, said means comprising vertical rods with theirlower ends sWiveled to the deflected ends of the closing caps of saidtubes, the upper portions of said rods being screiv-threaded andengaging in tapped openings in the cover of the trough traversed by saidrods, and nuts and soft Washers threaded on the ends of said rodsexternally, substantially as described and for the purposes specified.

3. In apparatus for carbureting air the combination of a liquidcontaining tank provided with a gage, a float feed and inlet and outletorifices, a common air chamber Within the tank, a plurality of partiallyimmersed carbureting tubes, communicating With a common air chamber,perforated at regular intervals on their under or immersed parts, saidcarbureting tubes being closed at one of their ends and flexiblyconnected to the Wall of the air chamber at their other ends, means forvarying the inclinations of the carbureting tubes, said means comprisingvertical rods With their lower ends swiveled to the deflected ends ofthe closin caps of said tubes, the upper portions of said rods beinscrew-threaded and engaging in tapped openings in the cover of thetrough traversed by said rods, and nuts and soft Washers threaded on theends of said rods externally, and hoods or conduits containing thecarbureting tubes, said hoods or conduits being open at their free ends,all arranged and operated substantially as specified.

4C. In apparatus for carbureting air, the combination of a common airchamber, a plu 'alit-y of carbureting tubes receiving air from said airchamber formed at one end of the liquid containing trough or vessel, anda tank formaintaining the supply oi liquid hydrocarbon, substantially asdescribed and for the purposes specified.

In testimony whereof I have aflixed my signature in presence of twoWitnesses.

NOR-MAN WILLIAM PILL. VVit-nesses ROBERT Srnnon, A. B. PEMPLE.

